barack obama and mitt romney, they are getting ready to face-off tomorrow night. and as cnn's national political correspondent jim acosta discovered, it will be one of the very two times the two men have actually met in person. jim is joining us live from littleton, colorado. what's the latest on this particular score, jim? >> reporter: well, wolf, i can tell you right now that ann romney is about to take the stage behind me. she's going to be holding an event here in littleton, colorado, in a few moments from now. she's been one of this campaign's most effective surrogates and been very busy doing just that while her husband, mitt romney, has been doing debate preparations just a short distance away in denver. it will be fascinating, wolf, to watch the body language between mitt romney and president obama tomorrow night when they meet face-to-face as the obama campaign revealed to cnn, the two men have only met a few times in the past. flash back to 2008 and there they are. then-senator barack obama and mitt romney sharing a few moments on stage after back-to-bac